Casio FX-CG10 Software User Guide - Page 322
Using Distribution Graphs in a Program, cumulative distribution graph
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k Using Distribution Graphs in a Program Special commands are used to draw distribution graphs in a program. • To draw a normal cumulative distribution graph DrawDistNorm , [,σ, ƫ] Population mean*1 Population standard deviation*1 Data upper limit Data lower limit *1 This can be omitted. Omitting these items performs the calculation using Ʊ = 1 and ƫ = 0. ∫ p = 1 2πσ Upper - e (x - μμ)2 2σ 2 dx Lower ZLow = Lower σ - μ ZUp = Upper σ - μ • Executing DrawDistNorm performs the above calculation in accordance with the specified conditions and draws the graph. At this time the ZLow < x < ZUp region on the graph is filled in. • At the same time, the p, ZLow, and ZUp calculation result values are assigned respectively to variables p, ZLow, and ZUp, and p is assigned to Ans. • To draw a Student-t cumulative distribution graph DrawDistT , , ∫p = Upper Γ df + 2 1 Lower Γ df 2 Degree of freedom Data upper limit Data lower limit - df + 1 1 + x2 2 × df dx π × df tLow = Lower tUp = Upper • Executing DrawDistT performs the above calculation in accordance with the specified conditions and draws the graph. At this time the Lower < x < Upper region on the graph is filled in. • At the same time, the p calculation result value and the Lower and Upper input values are assigned respectively to variables p, tLow, and tUp, and p is assigned to Ans. 8-38